Marineland Replacement Bio-Wheel for Eclipse 1 Hood & Eclipse System 12 allows beneficial bacteria grow and thrive on its super dense surface through its rotation. As water flows, the Bio-Wheel eliminates ammonia and nitrite on contact.

Irregular rotation of the Bio-Wheel is also normal

Discoloration of pleated Bio-Wheel material is normal and desirable

A Bio-Wheel rotating at any speed is working to eliminate toxic ammonia and nitrite

Marineland Replacement Bio-Wheel for Eclipse 1 Hood & Eclipse System 12 allows beneficial bacteria grow and thrive on its super dense surface through its rotation. As water flows, the Bio-Wheel eliminates ammonia and nitrite on contact.

Irregular rotation of the Bio-Wheel is also normal

Discoloration of pleated Bio-Wheel material is normal and desirable

A Bio-Wheel rotating at any speed is working to eliminate toxic ammonia and nitrite